Shuttle-operating mechanism for looms



(No Model.)

L. BRAND. SHUTTLE OPERATING MECHANISM FOR LOOMS. V 110,419,818.Patented-Jan. 21, 18 90.

1X) Mia woo e a mwmtoz W W% $8); @MWQ @513 alibi/Meg UNITED STATESPATENT OFFICE.

LElVIS BRAND, OF BOZR AHVILLE, CONNECTICUT.

SHUTTLE-OPERATING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 419,818, dated January21, 1890.

\ Application filed eptember 27, 1886- Renewed November 30, 1889. SerialNo.332,072. (No model.)

To all whom it may concern.-

Be it known that I, LEWIS BRAND, a citizen of the United States,residing at Bozrahville, in the county of New London and State ofConnecticut, have invented a certain new and useful Improvement inShuttle Operating Mechanisms for Looms, which improvement is fully setforth and described in the following specification, reference being hadto the accompanying drawings, in which Figure l is a front sideelevation of the frame and so-called lathe of a loom having thepicker-sticks and their actuating mechanism properly attached and thelay-swords broken out to show parts behind. As the other elements of theloom are well known and not directly connected with my improvement, Ihave thought it unnecessary to show them here. Fig. 2 is an enlargedside view of the jointed connection 0 1", and Fig. 3 is a longitudinalvertical central section of the same.

My invention relates particularly to the mechanism in cotton and woolenlooms by means of which the picker-sticks are moved to throw theshuttle, my immediate object being to so improve said mechanism that Imay dispense with the connecting-strap so long and commonly used,substituting therefor devices which are cheaply produced and arepractically indestructible.

In the class of looms above referred to, in which straps of leather orrawhide are used, said straps are continually wearing and breaking,causing unnecessary expense and stopping the loom for a considerablelength of time while undergoing repairs. My devices, when once applied,work equally as well as the straps and will wear as long as the otherelements of the loom.

Referring to the drawings, the letter arepresents the picker-sticks,said sticks being pivoted in brackets 19 and connected at their lowerends with an arm depending from said brackets by springs 0. Thesesprings c act with a constant tendency to throw the upper longer arms ofthe picker-sticks outward, and may be spiral springs, asshown, or of anyof the many formsin common use. Secured to each picker-stick abovebracket Z) is a loop d, provided to hold in place a strap 6, formed,preferably, of rawhide.

h indicates a shaft arranged to rotate in suitable bearings within themain frame of the loom and carrying cams t z.

The letters K indicate rock-shafts, each having arms Z m. The upper armlhas on its free end an idle pulley or roll n, which rests on the cam z',and the longer arm m extends downward to a point nearly on a level withthe loop (Z.

My invention lies in the particular devices.

which connect the'said arm m with the picker-stick strap 6. Secured tothe free end of arm n is a cast-metal clip 0, held in position by aset-screw p and having pivoted in its outer slotted end a bracketr,whose outer end is formed as a stud 5.

By referring to Fig. 3 it will be understood that the bracket 1' ispractically hinged within the clip 0. Instead of the strap usedheretofore, I provide a pitman t, of hard wood, one end of which isriveted to the rawhide strap 6, the other end being bored to slip overstud .9, being held in pivotal engagement with said stud by a pin 3. Thepivot which fastens the outer end of pitman t to strap 6 is at a rightangle to the stud s, and it will now be understood that the severaljointed connections described allow a universal movement to the 'pitmanwhen in use. As the cam c' rotates, the arm Z is thrown forcibly upward,thus drawing arm m and its several connected parts, including thepicker-stick, inward. As the cam continues its round, spring 0 bringsthe pickerstick back to its normal position. The connection 0 r andpitman t are of such shape and material that they may be cheaplyproduced, and may also be applied to many of the forms of looms incommon use without making other changes in said looms.

Having described my invention, I claim- The combination, with the pickersticks pivoted as described, of the pitmen 2f, the rock-shafts havingarms Z m, the cams c, the shaft h on which the cams are mounted, and

the clips 0, for connecting the arms m and pitmen 1, the brackets r,pivoted to the clips and having ends 8, to which the pitmen are secured,and the screws 1), for holding the clips in their adjusted position onthe arms m, substantially as described.

LEWIS 2 BRAND.

mark

Witnesses:

FRANK I-I. ALLEN, TYLER J. HOWARD.

IOO

